Contrary to popular belief, the Great Pyramid is an eight-sided building, not a four-sided construction. The four sides of the pyramid are equally separated from base to top by extremely minor concave indentations.
In fact, the only real difference between the Great Pyramid and other pyramids is that it has eight rather than six sides. It is possible to prove that the Great Pyramid was built as an eight-sided structure by simply counting the number of blocks that make up each side. There are actually two different methods used by archaeologists to determine how many sides any given pyramid has; they are called "counting techniques" and they involve examining certain features of the monument.
The first method is called "block counting" and it's based on the principle that larger blocks are needed to build a taller pyramid. So, by studying the size of the blocks used in constructing the various sides of the pyramid, archaeologists can estimate how many sides it has. For example, if researchers estimate that the block on one side of the pyramid is about the same size as the block on another side, then they know that those two sides are equal in height. In this case, the pyramid has an even number of sides.
This finding is thought to have been discovered in 1940 by a British Air Force pilot called P.O. Jones, who was investigating a possible crash site near the pyramid. He concluded that the pyramid was not a natural stone structure but rather it was built by humans - as suggested by its orientation errors compared with true geological formations around it.
There are actually two types of pyramids: those with straight sides and those with curved or sloping sides. The Great Pyramid of Giza has exactly eight straight sides, no more, no less. It is estimated to be about 485 feet (145 m) on each side, making it the largest single block of stone ever moved by human hands.
In addition to the Great Pyramid, Egypt has many other large pyramids, some of which have had their sizes significantly reduced over time through erosion. Some estimates say that there are about 200 pyramids in all of Egypt!
It is believed that the Egyptians built the Great Pyramid as a tomb for King Khufu, but they also used it for other purposes. According to some historians, the pyramid was originally painted in bright colors but over time these colors have faded due to exposure to sunlight.
Isn't the Great Pyramid of Giza's foundation square? No, not exactly. The corners are more rounded than angular.
In fact, its foundation consists of nearly 5,000,000 cubic meters of rock that has been carefully leveled off and graded into a uniform horizontal surface about 30 centimeters (12 inches) deep.
This was probably done with large machines called "slabs," which were likely used for cutting and moving the heavy rocks. Each slab has many holes in it for taking water out when it gets flooded during the annual Nile River flood cycle. The Great Pyramid was built as an artificial island by removing soil from around its perimeter and piling it up on the outside to create a protective wall. This is why there are no buildings inside the pyramid boundaries; they would be destroyed when the mound is removed.
Modern researchers believe that the pyramid may have been designed to be viewed from the east or west. If this is true, then it follows that some of its sides must be visible from those directions. It is known that the north side is visible from far away in Egypt because that is where the pyramids are found but the south side is never seen because it is blocked by the pyramid of Khafre.